AMD Radeon HD 6970 X2 vs AMD Radeon R9 280X2

VS

AMD Radeon HD 6970 X2 AMD Radeon R9 280X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 X2 and 3GB VRAM Radeon R9 280X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 280X2 's Advantages

Boost Clock1000MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 176.0GB/s)

512 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6970 X2

2.703 TFLOPS

Radeon R9 280X2 +51%

4.096 TFLOPS

Radeon HD 6970 X2

VS

Radeon R9 280X2

Graphics Card

Unknown

Release Date

Unknown

Northern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

950 MHz

-

Boost Clock

1000 MHz

1375 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

176.0GB/s

Bandwidth

288.0GB/s

Render Config

-

SM Count

-

24

Compute Units

32

1536

Shading Units

2048

96

TMUs

128

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

768 KB

Theoretical Performance

28.16 GPixel/s

Pixel Rate

32.00 GPixel/s

84.48 GTexel/s

Texture Rate

128.0 GTexel/s

-

FP16 (half)

-

2.703 TFLOPS

FP32 (float)

4.096 TFLOPS

-

FP64 (double)

1024 GFLOPS

Graphics Processor

Antilles

GPU Name

Tahiti

Antilles XT (215-0807027)

GPU Variant

Tahiti XTL (215-0821065)

TeraScale 3

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.64 billion

Transistors

4.313 billion

389 mm²

Die Size

352 mm²

Board Design

375W

TDP

375W

750 W

Suggested PSU

750 W

2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

6x mini-DisplayPort 1.2

3x 8-pin

Power Connectors

3x 8-pin

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

CUDA

-

5.0

Shader Model

5.1

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